quartz The graphics device for the OS X
native Quartz 2d graphics system. (This is only functional on
OS X where it can be used from the R.app GUI and from the
command line: but it will display on the local screen even for a
remote session.)

Details

If no device is open, using a high-level graphics function will cause
a device to be opened. Which device is given by
options("device") which is initially set as the most
appropriate for each platform: a screen device for most interactive use and
pdf (or the setting of R_DEFAULT_DEVICE)
otherwise. The exception is interactive use under Unix if no screen
device is known to be available, when pdf() is used.

It is possible for an R package to provide further graphics devices
and several packages on CRAN do so. These include other devices outputting
SVG and PGF/TiKZ (TeX-based graphics, see http://pgf.sourceforge.net/).